Regional School Unit 21 Historical Amount of Rooms in a House Data
ACS 2010-2014 data
| | Regional School Unit 21 | Maine | U.S. |
| Total Housing Units | 10,570, 100% | 724,685 | 132,741,033 |
| 1 Room | 237, 2.24%, see rank | 2.56% | 1.95% |
| 2 Rooms | 196, 1.85%, see rank | 3.57% | 2.48% |
| 3 Rooms | 551, 5.21%, see rank | 9.58% | 9.13% |
| 4 Rooms | 1,297, 12.27%, see rank | 17.70% | 16.60% |
| 5 Rooms | 1,614, 15.27%, see rank | 20.22% | 20.41% |
| 6 Rooms | 1,808, 17.11%, see rank | 17.50% | 18.06% |
| 7 Rooms | 1,761, 16.66%, see rank | 11.95% | 12.27% |
| 8 Rooms | 1,492, 14.12%, see rank | 7.74% | 8.48% |
| 9 Rooms or More | 1,614, 15.27%, see rank | 9.17% | 10.60% |
| Median Rooms | 6.30, see rank | 5.30 | 5.50 |
ACS 2008-2012 data
| | Regional School Unit 21 | Maine | U.S. |
| Total Housing Units | 10,359, 100% | 721,171 | 131,642,457 |
| 1 Room | 278, 2.68%, see rank | 2.44% | 1.95% |
| 2 Rooms | 154, 1.49%, see rank | 3.37% | 2.36% |
| 3 Rooms | 382, 3.69%, see rank | 9.42% | 8.97% |
| 4 Rooms | 1,412, 13.63%, see rank | 17.67% | 16.57% |
| 5 Rooms | 1,437, 13.87%, see rank | 20.35% | 20.41% |
| 6 Rooms | 2,037, 19.66%, see rank | 17.62% | 18.25% |
| 7 Rooms | 1,768, 17.07%, see rank | 12.14% | 12.38% |
| 8 Rooms | 1,441, 13.91%, see rank | 7.89% | 8.59% |
| 9 Rooms or More | 1,450, 14.00%, see rank | 9.09% | 10.52% |
| Median Rooms | 6.20, see rank | 5.30 | 5.50 |
ACS 2006-2010 data
| | Regional School Unit 21 | Maine | U.S. |
| Total Housing Units | 10,119, 100% | 714,270 | 130,038,080 |
| 1 Room | 165, 1.63%, see rank | 2.08% | 1.59% |
| 2 Rooms | 212, 2.10%, see rank | 3.58% | 2.62% |
| 3 Rooms | 271, 2.68%, see rank | 9.57% | 9.02% |
| 4 Rooms | 1,377, 13.61%, see rank | 18.04% | 16.85% |
| 5 Rooms | 1,509, 14.91%, see rank | 20.72% | 20.93% |
| 6 Rooms | 2,194, 21.68%, see rank | 17.76% | 18.56% |
| 7 Rooms | 1,703, 16.83%, see rank | 12.24% | 12.38% |
| 8 Rooms | 1,221, 12.07%, see rank | 7.66% | 8.39% |
| 9 Rooms or More | 1,467, 14.50%, see rank | 8.35% | 9.65% |
| Median Rooms | 6.20, see rank | 5.30 | 5.50 |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
